| 1 | Legacy Corporation, The | Cedar Park, TX 78613 | Oil & Gas Operator | Jun 2004 |
| 2 | Legend Natural Gas III, LP | Houston, TX 77094 | Oil & Gas Operator | Feb 2015 |
| 3 | Legend Natural Gas IV, LP | Houston, TX 77094 | Oil & Gas Operator | Feb 2015 |
| 4 | Lime Rock Resources A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2024 |
| 5 | Lindenmuth & Associates Inc | Austin, TX 78703 | Oil & Gas Operator | Aug 2024 |
| 6 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
| 7 | Live Oak Reserves, Inc. | Houston, TX 77019 | Oil & Gas Operator | Dec 2024 |
| 8 | LMP Exploration Operating, LLC | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Feb 2008 |
| 9 | Lodestone Operating | Portland, TX 78374 | Oil & Gas Operator | Aug 2024 |
| 10 | Lodestone Operating, Inc. | Portland, TX 78374 | Oil & Gas Operator | Dec 2024 |
| 11 | Lomak Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 1998 |
| 12 | Lre Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2016 |
| 13 | LTS Oil & Gas | Lubbock, TX 79424 | Oil & Gas Operator | Dec 2024 |
| 14 | Lucky Lad Energy, LLC | Magnolia, TX 77353 | Oil & Gas Operator | Dec 2024 |
| 15 | Lundberg Operating Corporation | Dallas, TX 75225 | Oil & Gas Operator | Oct 2002 |